I'm at the end of my tether with my knee and I'm starting to think that some kind of knee replacement is the only answer. I'm looking for advice or someone who may have had similar symptoms as me. Here we go and apologies if this should not be here. I have had a lateral release approx 5 years ago which included some re-modelling of the knee cap. I had 12-18 months of getting back to normal and everything seemed ok. However, last year I went on a holiday with my kids and wife and whilst away I decided to run ahead in flat shoes and on uneven ground to get our car out of a car park. Ever since I have had a whole host of feelings, these are the pains/symptoms. I get knee pain just sitting and have to move it around or make it pop/click for the pressure feeling to go away. I get pain on the right hand side of my patella (knobbly bit) I get pain in my shin on the inner side of leg I get pain at the back of my knee, hard to say where exactly. And it just feels like toothache but in your knee. The pain is not excruciating but its is really annoying and actually painful. I have since been back to hospital and had 2 MRI scans, none of which show anything. I had 1 X-ray and that came back that I had early onset of arthritis in my right knee. I get crunching sensation in my knee and it's just pretty hard work in the mornings until I get going. I cycle and when I cycle its fine although week due to muscle wastage from the op, I'm only 38 and worried to death that this is it for me. Has anyone had similar symptoms, experiences? If so was your arthritis? Could it be patello-femoral syndrome? Is it something else? Could losing weight help as I could do with losing 3 stone if you follow the guidelines for BMI here in the UK. Then the final question, will some kind of knee replacement help?